A continuous fiber composite 3D printer head and its universal lamination device

Abstract

A continuous fiber composite material 3D printer head and its universal lamination device are composed of a continuous fiber composite material cladding extrusion part and a universal lamination part. The cladding extrusion part is composed of the head shell, guide core, throat, die, nozzle and so on. The shell of the machine head, the diversion mold core and the die form an annular channel for resin flow. The continuous fiber drawn from the throat is clad by resin ring at the die, and finally forms a continuous fiber composite and is extruded from the nozzle. The universal lamination part is composed of positioning ring, deep groove ball bearing, thrust ball bearing, rotating body, pressing roller, etc. It is assembled on the die cylinder and can rotate 360 ​​degrees. The continuous fiber composite is deposited onto a forming flat plate, which can be compacted by rollers behind the nozzle. When the printing direction changes, the pressure roller mechanism will automatically rotate around the die cylinder with the printing direction, so that it is always behind the nozzle to achieve universal compaction effect.

Description

technical field [0001] The invention relates to a 3D printer head and its universal lamination device, in particular to a continuous fiber reinforced 3D printer head and arbitrarily rotatable universal lamination device. Background technique [0002] The existing continuous fiber composite 3D printer technology is mainly to open the side of the flow channel of the ordinary FDM 3D printer, and then feed the continuous fiber from the side to make it compound into the resin, and finally extrude through the nozzle. First of all, the material form of ordinary FDM 3D printers is mainly filament, which limits the application of various thermoplastic and thermosetting resins in continuous fiber 3D printing technology. Secondly, the side feeding method of the continuous fiber makes it transported at a certain angle, which increases the possibility of the fiber breaking due to high friction. [0003] When the continuous fiber composite extrusion filament fills the right angle or circ...

AI Technical Summary

Problems solved by technology

Relevant scholars fix a pressure roller on the side of the nozzle, which can solve the above problems to a certain extent. However, the position of the above pressure roller is fixed, and it can only play a compacting role when the nozzle is filled in a specific direction. After changing the printing direction, it cannot to compact

Another scholar proposes to control the rotation direction of the pressure roller by means of electric drive, which not only increases the difficulty of the control part and increases the cost, but also increases the complexity of the structure

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